EN31 – Operate programmable logic controller

Course Objective
To provide the participant with the knowledge of the characteristics of Programmable Logic Controllers (PLC) and be able to set-up and operate it and participants will also do some basic PLC programming using ladder diagrams.

Target Group
Engineers, technicians, maintenance staff, designers and trainers

Course Content

  • Introduction to Programmable Logic Controllers (PLC):
    - Characteristics
    - Applications
  • Design and mode of operation of a PLC:
    - Structure and central control unit of a PLC
    - Input and output module
    - Programming device
  • Input devices:
    - Electrical switches
    - Electrical relays and contactors
    - Electrical sensors
  • Output devices:
    - Solenoid operated valves
  • Mechanical, pneumatic/hydraulic and man machine interface
  • Reading of electrical circuit diagrams
  • ISO symbols for signal, control and working elements according to ISO 1219
  • Commissioning a PLC:
    - Checking the hardware
    - Transferring and testing of software
    - Optimisation of software
    - Commissioning of the system
  • Programming Languages according to IEC 61131-3:
    - Ladder diagram
    - Function block diagram
  • Programming of simple logic functions
  • Simulation and practical exercises


  • Completed PSLE and are able to speak, read and write in basic English
  • Participants with the following competency rating from the Employability Skills System (ESS) are eligible:
    - Listening / Speaking – Min. level 4
    - Reading / Writing – Min. level 4
    - Numeracy – Min. level 4

4 days (32 hours)